An updated IDNA criterion for right-to-left scripts

Document Type Replaced Internet-Draft (individual in app area)
Last updated 2015-10-14 (latest revision 2008-02-14)
Replaced by RFC 5893
Stream IETF
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state (None)
Document shepherd No shepherd assigned
IESG IESG state Replaced by draft-ietf-idnabis-bidi
Consensus Boilerplate Unknown
Telechat date
Responsible AD Chris Newman
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


The use of right-to-left scripts in internationalized domain names has presented several challenges. This memo discusses some problems with these scripts, and some shortcomings in the 2003 IDNA BIDI criterion. Based on this discussion, it proposes a new BIDI criterion for IDNA labels.


Cary Karp (
Harald Alvestrand (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)